Apex domains cannot have CNAME records.
Question and response
Question
dig qd-tgl.com. NS
Answer
qd-tgl.com. 4 NS ns1.qd-tgl.com.
qd-tgl.com. 4 NS ns2.qd-tgl.com.
Authority
The response has no authority records.
Additional
ns1.qd-tgl.com. 4 A 142.171.165.219
ns2.qd-tgl.com. 4 A 142.171.165.214
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0